Dual whisk



FIG. 1 is a perspective view of a dual whisk showing the design;

FIG. 2 is a front elevated view thereof;

FIG. 3 is a right side elevated view thereof;

FIG. 4 is a rear elevated view thereof;

FIG. 5 is a left side elevated view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof. 

CLAIM The ornamental design for a dual whisk, as shown and described. 